Hecho general: 56523 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 56523 is a boring number.
Trivia: 56523 is an uninteresting number.
Fecha histórica: October 2nd is the day in 1992 that the Carandiru Massacre takes place after a riot in the Carandiru Penitentiary in São Paulo, Brazil.